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-Status:
-- = Planned.
-X = In progress, some work done.
-* = Done.
-? = Not sure if worth the effort or useful at all.
-N = Decided against.
-
-Within 2.1.x
-* Binary Semaphores on top of Counting Semaphores.
-* Direct unbuffered UART driver.
-  Requirements: low level, callbacks, DMA capable, state machines buildable
-                on top, support data words greater than 8 bits, callback for
-                "last byte transmitted (RS485)", simple implementation,
-                verifiable.
-* Rework STM32 drivers to use friendly IRQ names and centralized DMA macros.
-* I-class functions for the ADC/PWM drivers.
-* All the device driver structures must have a fields extension macro and
-  initializer hook.
-* All the device driver callbacks must have the driver pointer as first
-  parameter.
-* Change the SPI driver to be able to work asynchronously using callbacks,
-  keep the synchronous APIs available as option.
-* Add an optional spiPolledExchange() API to the SPI driver model.
-* Update the STM32 SPI driver to the new model.
-* Make the ADC driver have the same synchronous/asynchronous API of the
-  new SPI driver model.
-* General HAL improvements.
-* Update the AT91SAM7 SPI driver (DMA and/or ISR).
-  * Verify the FatFs demo on both the AT91SAM7X and AT91SAM7S.
-* Update the LPC214x SPI driver (ISR).
-  * Verify the LPC214x FatFs demo.
-* Write a new SPI driver for LPC1xxx (ISR)(it should be very close to the
-  LPC214x one).
-N Evaluate if to add a synchronous API to the UART driver, eventually do so.
-* Global documentation reorganization in order to allow both separate documents
-  and the usual blob document.
-* PDF generation from the documentation system (only separate documents, not
-  the blob).
-* Automatic compilation and upload of the various documents on the web site
-  (doxygen + rsync).
-* New STM8S/A SPI driver.
-* Reorganization of the STM32 family port-level support.
-* Remove preprocessor directives from the assembler files and restore the
-  RIDE7 build files in the STM32 demo.
-* Move dynamic APIs into a separate source file.
-* Improved support in the STM32 HAL support for multiple sub-families. Do
-  not check for the family in the various drivers but simply check for
-  switch macros like STM32_HAS_USART3, STM32_HAS_SPI3. This what the
-  drivers will not need changes when adding new sub-families.
-* STM8L official HAL support, it will have to be separated from the STM8S/STM8A
-  HAL because it is very different.
-  * Shared ISR management.
-  * STM8L-Discovery demo.
-* Add the STM32F100 (Value Line) sub-family to the official STM32 HAL support.
-  * STM32VL-Discovery demo.
-* Remove the PAL default configuration from the various hal_lld.c and move
-  them into board.c files, this will remove an ugly dependency.
-* Realign the STM8 port to the new STM8L one as options, naming conventions
-  and general solutions.
-* Support for more compilers (IAR, Keil, ARMCMx only initially).
-X Support for not just Makefiles (Ride7, Crossworks etc).
-* IAR port for Cortex-Mx, add demos for all the supported families.
-* Keil port for Cortex-Mx, add demos for all the supported families.
-* Change the serial drivers to have a single event source instead of three.
-  Add Rx and Tx to the existing flags mechanism. Move up the flags handling in
-  the superclass.
-X Except for the above, bug fixing only until the 2.2.0 release.
-
-Within 2.3.x (hopefully)
-- Resist doing more changes and optimizations to the kernel.
-? Make thread functions return void.
-- Introduce a "THREAD" function prefix in order to hide compiler-specific
-  optimizations for thread functions.
-X Add an USB abstract device driver class.
-X USB driver implementation for STM32F103/STM32F102.
-X Add a Serial over USB generic device driver implementing a USB Communication
-  Device Class and offering a Serial-like interface to the applications.
-- Add a switch to enable/disable the priority inheritance algorithm in mutexes.
-X File System infrastructure.
-  - Official FatFs wrapper using the new infrastructure, dedicated test suite.
-X Transactional flash file system implementation.
-X I2C device driver class support and at least one implementation.
-- Serial over UART complex driver driver, evaluate from the performance
-  results if to make obsolete the current dedicated Serial driver.
-X Shared DMA channels support in the STM32/STM8L HALs.
-X New device driver models: Clock, Systick, RTC, WDG, DAC, Power Monitor.
-- MAC driver for STM32F107 (hardware missing).
-- Device drivers for STM8/STM8L (ADC, PWM, bring them on par with STM32).
-- Batch testing of the ARM7/ARMCMx port using OpenOCD, with reports.
-- Debug-related features and tools.
-- Add a *very simple* ADC API for single one shot sampling (implement it as
-  an injected conversion on the STM32).
-- Update C++ wrapper (Heap, Pools, Mailboxes and any new feature).
-- Threads Pools manager in the library.
-
-Later but within 2.x.x
-- Dedicated TCP/IP stack.
-? ISO7816 driver over UART driver, both reader and card side (hardware
-  missing).
-- Merge the Coldfire branch in mainline (hardware missing).
-- Merge the H8S branch in mainline (hardware missing).
-- MAC driver revision in order to support copy-less operations, this will
-  require changes to lwIP or a new TCP/IP stack however.
-
-Ideas for 3.x.x:
-- MMU/MPU support.
-- High resolution timers and tickless kernel.
-- Multicore support.
-
-Side projects:
-X ChibiOS Wizard, UML modeling and ChibiOS applications code and
-  documentation generator.
-? File System
-- Visual debugger/monitor interfaced through OpenOCD.